51552235431 has 96 divisors (see below), whose sum is σ = 83374986240. Its totient is φ = 31729065984.

The previous prime is 51552235417. The next prime is 51552235453. The reversal of 51552235431 is 13453225515.

51552235431 is a `hidden beast` number, since 5 + 1 + 552 + 23 + 54 + 31 = 666.

It is not a de Polignac number, because 51552235431 - 2⁶ = 51552235367 is a prime.

It is a super-2 number, since 2×51552235431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552231431) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 76600311 + ... + 76600983.

It is an arithmetic number, because the mean of its divisors is an integer number (868489440).

Almost surely, 2^51552235431 is an apocalyptic number.

51552235431 is a deficient number, since it is larger than the sum of its proper divisors (31822750809).

51552235431 is a wasteful number, since it uses less digits than its factorization.

51552235431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1095 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 51552235431 in words is "fifty-one billion, five hundred fifty-two million, two hundred thirty-five thousand, four hundred thirty-one".